Overflow type biological overflowing box
By designing a flow-through biological flow box and utilizing a combination of packing support and sewage pipe, the problem of poor filtration effect of aquaculture water in existing technologies has been solved, achieving efficient multi-stage filtration and sedimentation, and extending the service life of the device.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-03-03
AI Technical Summary
Existing aquaculture water filtration devices use a direct current method, resulting in short residence time, poor purification effect, and easy formation of scale or other impurities after prolonged use, which affects the filtration effect.
Design a flow-through biological flow-through box, which divides the internal cavity of the box into a left cavity and a right cavity by a partition plate, and installs a packing support in the right cavity. The aquaculture water flows from the bottom to the top and is filtered by the packing to settle heavy impurities. The settled impurities are periodically removed through a drain pipe. Multiple boxes can be connected in series to achieve multi-stage filtration.
It improves the filtration effect of aquaculture water, extends the service life of the filtration device, reduces the water flow rate, enhances the sedimentation effect, realizes multi-stage filtration, and reduces water pollution.
Smart Images

Figure CN223963286U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of aquaculture technology, specifically to a flow-through biological flow box. Background Technology
[0002] Aquaculture is a production activity involving the breeding, cultivation, and harvesting of aquatic plants and animals under human control. It generally includes the entire process of raising aquatic products from seedlings to finished products under artificial feeding and management. However, during the aquaculture process, the aquaculture water may be affected by the feed or excrement of the aquatic products, causing the water to become polluted and the water quality to decline. This may affect the life of the aquatic products and thus affect the production of aquatic products. Therefore, it is necessary to regularly replace and filter the aquaculture water.
[0003] However, existing aquaculture water filtration devices use multiple filter tanks for filtration, with a direct water flow and short residence time, resulting in poor purification effects. Furthermore, after prolonged use, scale and other impurities easily accumulate in the filter tanks, potentially affecting the filtration efficiency and consequently impacting aquaculture. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a flow-through biological flow box, which overcomes the deficiencies of existing technologies and can effectively improve the filtration effect on aquaculture water.
[0005] To achieve the above objectives, this utility model provides the following technical solution:
[0006] A flow-through biological flow box includes a box body with an inlet at the bottom right side and an outlet at the bottom left side. A partition plate is vertically fixed to the bottom of the inner cavity of the box body, with a space between the upper end of the partition plate and the top of the inner cavity. The partition plate divides the inner cavity into a left cavity and a right cavity, which are interconnected through the space at the upper end of the partition plate. A packing support is fixedly installed in the right cavity, dividing the right cavity into an upper cavity and a lower cavity. The surface of the packing support has multiple uniformly distributed mesh holes, which are interconnected between the upper cavity and the lower cavity. The inlet is connected to the lower cavity, and packing material is placed on top of the packing support.
[0007] Preferably, a drain pipe is provided at the bottom of the lower cavity, and the end of the drain pipe extends out of the right side of the box and is sealed to the box; multiple drain slots are evenly opened on the lower surface of the drain pipe.
[0008] Preferably, the bottom surface of the box is configured as an inverted triangle with a lower center and higher front and rear ends, and the sewage pipe is located at the lowest point in the middle.
[0009] Preferably, a number of support plates are fixedly installed at the lower end of the packing support, the support plates are arranged perpendicular to the sewage pipe, and the surface of the support plates is provided with a number of large holes.
[0010] Preferably, flexible joints are fixedly connected to both the inlet and outlet.
[0011] Preferably, the upper end of the box is open, and a cover plate is installed on the upper opening surface of the box.
[0012] Preferably, the front and rear side walls of the inner cavity of the box are vertically and symmetrically installed with sealing guide grooves, and the front and rear sides of the partition plate are movably connected in the sealing guide grooves.
[0013] This invention provides a flow-through biological filter box. It offers the following advantages: Aquaculture water is introduced into the lower cavity below the packing support through the inlet. The water then flows upwards through the through-holes on the surface of the packing support, thus filtering the water through the packing. Because the water flows upwards from the bottom of the packing, the flow velocity is effectively reduced, improving the filtration efficiency. The upward slope also allows heavier impurities in the water to settle naturally, further contributing to sedimentation. Additionally, impurities settled at the bottom of the lower cavity can be drained out of the box through a drain pipe. Multiple flow-through biological filter boxes can be installed, and the inlets and outlets of adjacent boxes can be interconnected via flexible joints, achieving multi-stage filtration of the aquaculture water. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in this utility model or the prior art, the accompanying drawings used in the description of the prior art will be briefly introduced below.
[0015] Figure 1 A schematic diagram of the structure of this utility model;
[0016] Figure 2 A cross-sectional structural diagram of this utility model;
[0017] Figure 3 Cross-sectional view of this utility model;
[0018] Figure 4 A partial cross-sectional structural diagram of this utility model;
[0019] Explanation of the labels in the diagram:
[0020] 1. Box body; 2. Inlet; 3. Outlet; 4. Divider plate; 5. Left cavity; 6. Right cavity; 7. Packing support; 8. Packing; 9. Drain pipe; 91. Drain outlet; 10. Support plate; 11. Large hole; 12. Flexible joint; 13. Cover plate; 14. Sealing guide groove. Detailed Implementation
[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0022] Example 1, as Figures 1 to 4 As shown, a flow-through biological flow box includes a box body 1. An inlet 2 is located at the bottom right side of the box body 1, and an outlet 3 is located at the bottom left side of the box body 1. A partition plate 4 is vertically fixedly installed at the bottom of the inner cavity of the box body 1. A space is left between the upper end of the partition plate 4 and the top of the inner cavity of the box body 1. The partition plate 4 divides the inner cavity of the box body 1 into a left cavity 5 and a right cavity 6, which are interconnected through the space at the upper end of the partition plate 4. A packing support 7 is fixedly installed inside the right cavity 6, dividing the right cavity 6 into an upper cavity and a lower cavity. Multiple mesh holes are evenly distributed on the surface of the packing support 7, and the upper cavity and the lower cavity are interconnected through these mesh holes. The inlet 2 is connected to the lower cavity, and packing material 8 is placed above the packing support 7.
[0023] In this embodiment, a drain pipe 9 is provided at the bottom of the lower cavity. The end of the drain pipe 9 extends out of the right side of the box 1 and is sealed to the box 1. Multiple drain slots 91 are evenly opened on the lower surface of the drain pipe 9.
[0024] Working principle:
[0025] In use, the aquaculture water can be introduced into the lower cavity below the packing support 7 through the inlet 2. The water then flows upwards through the through-holes on the surface of the packing support 7, thus filtering the water through the packing material 8 above the support 7. In this embodiment, the packing material 8 can be one or a combination of biological packing material, activated carbon packing material, or coral stone packing material. Since the aquaculture water flows upwards from the lower end of the packing material 8, the flow rate is effectively reduced, thereby improving the filtration effect of the packing material 8. Furthermore, the upward slope also allows heavier impurities in the aquaculture water to settle naturally, thus also contributing to sedimentation.
[0026] After the aquaculture water passes through the packing material 8 for filtration, it overflows from the top of the partition plate 4, allowing the filtered aquaculture water to overflow directly from the top of the partition plate 4 into the left cavity 5, and then be discharged through the outlet 3 at the bottom of the left cavity 5.
[0027] Alternatively, one end of the drain pipe 9 can be passed through the right side of the housing 1 and connected to the drain pump. After a period of use, the drain pump can be turned on to evacuate the drain pipe 9, thereby drawing the impurities settled at the bottom of the lower cavity into the drain pipe 9 through the drain outlet 91, and then discharging them to the outside of the housing 1 through the drain pipe 9.
[0028] In this embodiment, multiple flow-through biological flow boxes can be set up, and the inlet 2 and outlet 3 between two adjacent boxes 1 can be connected to each other through flexible joints 12, so that the filtered aquaculture water can be discharged from the outlet 3 back into the lower cavity of another box 1, thereby achieving a multi-stage filtration effect for the aquaculture water.
[0029] In Example 2, as a further preferred embodiment of Example 1, the bottom surface of the tank 1 is configured as an inverted triangular structure with a lower center and higher front and rear ends, and the drain pipe 9 is located at the lowest point in the middle. By configuring the bottom surface of the tank 1 as an inverted triangular structure with a lower center and higher ends, the precipitated impurities can slide down the slopes on both sides to the middle position of the bottom surface of the tank 1, and then be collected centrally through the drain pipe 9 in the middle position.
[0030] In Example 3, as a further preferred embodiment of Example 1, several support plates 10 are fixedly installed at the lower end of the packing support 7. The support plates 10 are arranged perpendicularly to the sewage pipe 9, and multiple large holes 11 are opened on the surface of the support plates 10. The support plates 10 can not only provide a certain support for the packing support 7, but also buffer and slow down the aquaculture water, thereby further slowing down the sedimentation process.
[0031] In Example 4, as a further preferred embodiment of Example 1, flexible joints 12 are fixedly connected to both the inlet 2 and the outlet 3. The flexible joints 12 facilitate quick connection between the inlet 2 and outlet 3 of the two housings 1, and because the flexible joints 12 have a certain degree of extensibility and flexibility, they can also compensate for displacement and maintain the stability of the pipeline system.
[0032] In Example 5, as a further preferred embodiment of Example 1, the upper end of the housing 1 is open, and a cover plate 13 is installed on the upper opening surface of the housing 1. Therefore, when performing maintenance or replacing the packing 8, the cover plate 13 can be removed directly to open the upper opening of the housing 1, facilitating maintenance or replacement of the packing 8.
[0033] In Example 6, as a further preferred embodiment of Example 1, sealing guide grooves 14 are vertically and symmetrically installed on the front and rear side walls of the inner cavity of the housing 1, and the front and rear side edges of the partition plate 4 are movably connected within the sealing guide grooves 14. Therefore, when installing the partition plate 4, it can be directly inserted into the sealing guide grooves 14 on the front and rear side walls of the inner cavity of the housing 1 to quickly achieve the partitioning effect of the inner cavity of the housing 1.
[0034] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A flow-through biological flow box, characterized in that: The enclosure includes a housing (1), with an inlet (2) at the bottom of the right side and an outlet (3) at the bottom of the left side. A partition plate (4) is vertically fixed at the bottom of the inner cavity of the housing (1), with a space between the upper end of the partition plate (4) and the top of the inner cavity of the housing (1). The partition plate (4) divides the inner cavity of the housing (1) into a left cavity (5) and a right cavity (6), which are connected to each other through the space at the upper end of the partition plate (4). A packing support (7) is fixedly installed in the right cavity (6), which divides the right cavity (6) into an upper cavity and a lower cavity. The surface of the packing support (7) is evenly provided with multiple mesh holes, which are connected to each other through the mesh holes. The inlet (2) is connected to the lower cavity, and packing material (8) is placed on top of the packing support (7).
2. The flow-through biological flow-through box according to claim 1, characterized in that: The bottom of the lower cavity is provided with a drain pipe (9), the end of which extends out of the right side of the box (1) and is sealed to the box (1); a plurality of drain slots (91) are evenly opened on the lower surface of the drain pipe (9).
3. A flow-through biological flow-through box according to claim 2, characterized in that: The bottom of the box (1) is set as an inverted triangular structure with a bottom in the middle and high at both ends. The sewage pipe (9) is set at the lowest point in the middle position.
4. A flow-through biological flow-through box according to claim 1, characterized in that: The lower end of the packing support (7) is fixedly installed with several support plates (10). The support plates (10) are perpendicular to the sewage pipe (9). The surface of the support plates (10) is provided with multiple large holes (11).
5. A flow-through biological flow-through box according to claim 1, characterized in that: Flexible connectors (12) are fixedly connected to both the inlet (2) and the outlet (3).
6. A flow-through biological flow-through box according to claim 1, characterized in that: The box (1) has an opening at the top, and a cover plate (13) is installed on the opening surface at the top of the box (1).
7. A flow-through biological flow-through box according to claim 1, characterized in that: The front and rear side walls of the inner cavity of the box (1) are vertically and symmetrically equipped with sealing guide grooves (14), and the front and rear sides of the partition plate (4) are movably connected in the sealing guide grooves (14).